W. J. Gage and Company was a Toronto-based publishing, bookselling, and binding company. In 1874, William James Gage (1849-1921) became a partner of the publishing firm of Adam Miller & Co. After Mr. Miller died in 1875, Mr. Gage conducted the business with Mrs. Miller until her retirement in 1878. In 1879, the company changed its name to W. J. Gage & Co. In 1893, it was incorporated and became W. J. Gage & Co., Limited. The company owned a paper mill (Kinleith Paper Co. Ltd, St. Catharines) and manufactured its paper. In 1904, its large warehouse and factories were destroyed by fire. The firm moved to Spadina Avenue from 1906 to 1958, and then to Scarborough. It continues as Gage Educational Publishing Company, a division of Nelson Education, a major Canadian publisher of school textbooks and educational reference books. Sir William James Gage was also an important figure in Toronto’s history for his philanthropy as well as his business. He was knighted in 1913 as one of Canada’s greatest philanthropists because of his work in founding institutions to combat tuberculosis. Several of these evolved into major Toronto institutions, such as Toronto Western Hospital and the Gage Institute.